//方法一
export function formatDate(val) {
  const date = new Date(Number(val)); //时间戳为10位需*1000，时间戳为13位的话不需乘1000
  const Y = date.getFullYear() + "-";
  const M = (date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) : date.getMonth() + 1) + "-";
  const D = date.getDate() + " ";
  const h = date.getHours() + ":";
  const m = date.getMinutes() + ":";
  const s = (date.getSeconds() < 10 ? "0" + (date.getSeconds()) : date.getSeconds());
  return Y + M + D + h + m + s;
}
